code: def test_suite():
      # If connection to test db fails, bail out early.
      import psycopg2
  
      try:
          cnn = psycopg2.connect(dsn)
      except Exception as e:
          print(
              "Failed connection to test db:", e.__class__.__name__, e
          )
          print(
              "Please set env vars 'PSYCOPG2_TESTDB*' to valid values."
          )
          sys.exit(1)
      else:
          cnn.close()
  
      suite = unittest.TestSuite()
      suite.addTest(test_async.test_suite())
      suite.addTest(test_bugX000.test_suite())
      suite.addTest(test_bug_gc.test_suite())
      suite.addTest(test_cancel.test_suite())
      suite.addTest(test_connection.test_suite())
      suite.addTest(test_copy.test_suite())
      suite.addTest(test_cursor.test_suite())
      suite.addTest(test_dates.test_suite())
      suite.addTest(test_errcodes.test_suite())
      suite.addTest(test_errors.test_suite())
      suite.addTest(test_extras_dictcursor.test_suite())
      suite.addTest(test_fast_executemany.test_suite())
      suite.addTest(test_green.test_suite())
      suite.addTest(test_ipaddress.test_suite())
      suite.addTest(test_lobject.test_suite())
      suite.addTest(test_module.test_suite())
      suite.addTest(test_notify.test_suite())
      suite.addTest(test_psycopg2_dbapi20.test_suite())
      suite.addTest(test_quote.test_suite())
      suite.addTest(test_replication.test_suite())
      suite.addTest(test_sql.test_suite())
      suite.addTest(test_transaction.test_suite())
      suite.addTest(test_types_basic.test_suite())
      suite.addTest(test_types_extras.test_suite())
      suite.addTest(test_with.test_suite())
      return suite
  
imports: import warnings
  import sys
  from .testconfig import dsn
  import unittest
  from .None import test_async
  from .None import test_bugX000
  from .None import test_bug_gc
  from .None import test_cancel
  from .None import test_connection
  from .None import test_copy
  from .None import test_cursor
  from .None import test_dates
  from .None import test_errcodes
  from .None import test_errors
  from .None import test_extras_dictcursor
  from .None import test_fast_executemany
  from .None import test_green
  from .None import test_ipaddress
  from .None import test_lobject
  from .None import test_module
  from .None import test_notify
  from .None import test_psycopg2_dbapi20
  from .None import test_quote
  from .None import test_replication
  from .None import test_sql
  from .None import test_transaction
  from .None import test_types_basic
  from .None import test_types_extras
  from .None import test_with
label_desc: Use image node_id 1 for calling a global function with example usage: test_suite() and returns: suite